Home / 86,738.20-130,058.70-36,809.80

Finding the Fourth Proportional to 86,738.20, 130,058.70 and 36,809.80

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Solution

The fourth proportional to 86,738.20, 130,058.70 and 36,809.80 is: 55,194.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,738.20 : 130,058.70 = 36,809.80 : x
  2. Step 2: Convert to fraction form
    86,738.20/130,058.70 = 36,809.80/x
  3. Step 3: Cross multiply
    86,738.20x = 130,058.70 × 36,809.80
  4. Step 4: Simplify right side
    86,738.20x = 4,787,434,735.26
  5. Step 5: Solve for x
    x = 4,787,434,735.26/86,738.20
  6. Step 6: Final answer
    x = 55,194.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.